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Spark plasma sintering behavior of pure aluminum depending on various sintering temperatures

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Abstract

We have successfully fabricated high-density pure aluminum (Al) bulk by means of a spark-plasma-sintering (SPS) process. The relative density of Al was enhanced as the sintering temperature of the SPS process increased. During the SPS process for pure Al power, the Al oxide layer on the surface of the Al particle was partially broken by the microplasma and applied pressure. The microstructures of the spark-plasma-sintered compacts obtained at various temperatures were observed by optical microscopy, field-emission scanning electron microscopy, and high-resolution transmission electron microscopy. We believe that the pinning effect, rapid heating cycle, and applied pressure played an important role in restraining the particle growth despite the increase in sintering temperature. It is feasible that the employed SPS process could be very useful to achieve fully densified Al compact.

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Authors and Affiliations

  1. Institut de Chimie de la Matière Condensée de Bordeaux, ICMCB-CNRS, 87 Avenue du Docteur Schweitzer, F-33608, Pessac, France

    Hansang Kwon, Dae Hoon Park & Jean François Silvain

  2. Department of Materials Processing, Graduate School of Engineering, Tohoku University, Sendai, 980-8579, Japan

    Akira Kawasaki

  3. School of Materials Science & Engineering, Pusan National University, 30 Jangjeon-dong, Geumjeong-gu, Busan, 609-735, Korea

    Yongha Park & Yongho Park

Authors
  1. Hansang Kwon
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  2. Dae Hoon Park
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  3. Yongha Park
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  4. Jean François Silvain
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  5. Akira Kawasaki
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  6. Yongho Park
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Correspondence to Yongho Park.

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Kwon, H., Park, D.H., Park, Y. et al. Spark plasma sintering behavior of pure aluminum depending on various sintering temperatures. Met. Mater. Int. 16, 71–75 (2010). https://doi.org/10.1007/s12540-010-0071-2

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  • DOI: https://doi.org/10.1007/s12540-010-0071-2

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